Vamp-trimming machine.



Pa tented June '14, 1910.-

VV/ITNESESL fVVEN 70/1 unrrn s'rn'rns PATENT oFFroE.

OHBELL ASHTON, OF LAWRENCE, MASSACHUSETTS, ASSIQNOR T0 UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent. 4

VAMP-TRIMIVIINGi MACHINE.

Patented June 14, 1910.

Application filed March 2( 1907. Serial No. 363,495.

following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to machines which are used in the manufacture of shoes, and more particularly in the manufacture of welted shoes, to trim off the projecting edges of the vamp and lining after the shoe has been lasted in order to prepare the shoe for the operation .of the inseam sewing machine.

Certain features of the present invention are also applicable to vamp trimming machines of that class which act upon the shoe after the inseam is sewn and which are known in the art as inseam trimming machines, as will be obvious to those skilled in the art.

The object of the present invention is to provide a machine of the class above referred to having improved means for guiding the vamp and lining to the vamp trimming knife or knives and for causing the vamp and lining to be properly presented to the knife or knives so as to be trimmed in a satisfactory manner at all portions of the shoe.

With the above object in view a feature of the present invention contemplates the pro vision, 1n a vamp trimming machine, of a.

guide roll for the vamp and lining, arranged to engage the vamp and lining close to the point of operation of the trimming knife or knives and to hold the vamp and lining in proper'position as the shoe is fed past the knife or knives. To avoid any dragging action of the roll on the lining and to assist the operator in feeding the shoe, the guiding roll is preferably rotated in a direction to cause the surface of the roll in desired that the guiding roll be located as closely as possible to the point at which the trimming knives act on the vamp and linin in order to properly support the vamp an lining and to bring the roll and knives into as small a space as possible so as to permit narrow-toed shoes to be operated upon. To secure these results the roll is preferably arranged so as to overlap the blade of the trimming knife which extends inside of the vamp and lining. In the preferred form of the. invention hereinafter specifically de-' scribed, two guiding rolls are provided, mounted in axial alinement with each other so as to constitute in effect a single roll, one

roll being located below and the other above the blade of the trimming knife which extends inside of the vamp. and lining of the shoe. By the provision of these two rolls located above and below the blade of the trimming knife a suflicient extent of surface in engagement with the vamp and lining is secured to guide the vamp and lining accurately to the trimming knives and support them properly during the trimming operation.

The machine hereinafter specifically described as embodying the various features of the present invention is provided with a vibrating trimming knife which cooperates with the fixed trimming knife and which moves in a direction transverse to the direction of feed. In accordance with a feature of the present invention, avamp bending device is mounted to move with this vibrating trimming knife and is arranged to enthe vamp closely against the shoulder at the edge of the insole.

In addition to the features of invention above referred to, the machine hereinafter described embodies certain novel features of construction hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art.

. Referring now to the drawing accompanythis application, Figure 1 is a view in s1 e 'the forward end of a slide 5, moun elevation of a vamp-trimming machine embodying the features of the present .invention in their preferred form; Fig. 2 is a view in front elevation of the machine illustrated in Fig. 1; and Fig. 3 is a detail iectional plan view taken on lines 3-3 of The vamp-trimming knives of the ma-- chine illustrated in the drawing consist of a fixed Vamp-trimming blade 1 and a vibrating trimming-blade 2, said blades being arranged in a horizontal plane and being provided with inclined cutting edges as illustrated in Fi 3, so that the'space between the cutting e ges, when the blade 2 is at the limit of its backward movement, is V-shaped. The blade 1 is secured to 'or formed integral with the lower end of a shank or bar 3 which is secured to the overhanging head of the machine frame by means of bolts 4. The vibrating trimming-blade 2 is securedu n in horizontal guide-ways in the machine frame and actuated by an eccentric and strap from the driving shaft 6. The shaft 6 is mounted in the rear portion of the machine frame and is provided with fast-and-loose belt pulleys7'and 8 and with a hand-wheel 9. The trimming blade 1 is adapted to extend inside of the vamp and lining of the lasted shoe over the insole, and the trimmi blade 2 reciprocates toward and from the xed blade transversely to the direction of feed, and 00- operates with the fixed blade to trim the projecting edges of the vamp and lining as the shoe is fed past the knives. In the machine illustrated in the drawing the vamp and lining are raised from the sole and directed between the cutting edges of the trimming knives by means of a guiding roll 10- which is secured u on the lower end of a vertical shaft 11.. T is 'roll is located below the plane of the blade of the fixed trimming knife and in order to bring the roll as closely as possible to the point at which the trimming knives act on the vamp and lining, the roll"overlaps the cutting blade, the shaft 11 passing down through a hole in the endv of the blade. The roll 10, as illustrated in Fi 1, is frustoconical in shape, and has its iiase of smaller diameter directed downwardly toward the sole of a shoe lacedin the machine. This arrangement of the roll is preferable whennarrow-toed shoes are 0 rated u on, since the small end of the r0 occupies ess space in the shoe. In operating I on other styles of shoes, however, it is preferable to place the roll 10 in the machine so that its base of larger diameter is directed downwardly. The roll is accordingly, so constructed that it can be placed in the machine in either position. To secure the roll upon the lower end of the shaft 11, it is provided with a.

the'knife and also can act to central bore extending completely throughscrew-threaded upon the shaft 11, above the.

blade of the fixed trimming knife.

The means for rotating the rolls l0 and 12 to prevent drag on the lining and to assist the operator in feeding the shoe, consists of a worm gear 13 secured to the shaft 11 a shaft 14 journaled in the frame of'the machine at right angles to the shaft 11, a worm on this shaft meshing with the Worm gear 13, and a belt 15 passing over pulleys secured to the shafts 14 and 6. To render the action of the rolls on the lining positive, the peripheral surface of the rolls is referably knurled. The rolls are preferalily rotated at a peripheral speed some- .what in excess of the speed at which the shoe is fed so that the rolls exert a pulling action on the linin and act to positively straighten out the lining and raise it'from the sole. The roll 10 in addition to acting as a guide for the vamp and lining also acts'as a gage to bearagainst the sole of a shoe and determine the position of the shoe with relation to the vamp trimming knives.

The vamp bending device is indicated at 16 and consists of a plate secured tothe slide 5 by the same bolt'17 which secures the trim- Ining knife 2 to. the slide. The bolt '17 passes through a slot in the vam bending device so thatthe device can be acliusted to the pomore sition in which it will act inthe most satisfactory manner upon the particular style of work which is being operated upon. The work engaging surface ofthe vamp bendin device extends across the upper surface 0 the blade ofthe vibratin trimming knife as illustrated in Fig. 3 ant? the bendm device projects beyond the blade of the kni e at one side and below the knife as indicated .in

Figs. 2 and 3 so that'the device engagesthe vamp in advance of the cutting edges of into the shoulder at the edge of the insole. The projection of the vamp bendin device below the plane of the trimmin kni e 2 also acts effectively to preventa fol in the-vamp from passing beneath the knife.

The operation of the machine illustrated .in the drawing has been indicated in' con-' nection withthe description above given pf the construction and arrangement of its various parts and be. readily under-.

stood by those skilled inthe art without aseparate descri tion;thereof.

The nature an scope of the present 1npress the vamp.

vention having been indicated and a machine embodying the various features thereof in their preferred form having been. specifically described, what is claimed is 1. A vamp trimming machine, having,.in

combination, vamp trimming means ar- -ranged to trim the projecting edges of the vamp and lining 0 a lasted shoe, and a guidlng roll located in close proximity to the trimming means and arranged to. extend inside of the vamp and lining of a lasted shoe and direct the. vamp and lining to the trimming means. a I

2. A vamp trimming machine having, in combination, vamp trimming means arranged to trim the projecting edges of the vamp and lining of a lasted shoe, a guide roll to direct the vamp and lining to the trilrlnming means and means for rotating the r0 3. A vamp trimming machine having, in

' combination vamp trimming means, a frustoconical guide roll to direct the vamp and lining of a lasted shoe to the trimming means and means for securing the roll in the machine with either its base of larger diameter or its base of smaller diameter directed toward the sole of a shoe placed in the machine.

4. A Vamp trimming machine having, in combination, a fixed vamp trimming knife arranged to extend inside of the vamp of a lasted shoe, to trim the rojectin and lining of a laste shoe, and a guiding roll for the vam and lining located beneath the fixed trimming knife.

5. A vamp trimming machine having, in combination, ranged to extend inside 'of the vamp of a lasted shoe, a knife cooperating therewith to trim the projecting edges of the vamp edges of the Vamp a knife cooperatin therewith a fixed trimming knife ar- I and lining of the shoe, and guide rolls for the vamp and lining located respectively above and below the fixed knife.

6. A vamp trimming machine having, in

combination, a trimming knife arranged to extend inside of the vamp of a lasted shoe, a vibrating trimming nife cooperating therewith to trim the projecting edges of the vamp and lining of the shoe and a vamp bending device mounted to move with the vibrating knife and arranged to engage the vam at each forward movement 0 the vibrating trimming knife. 7. A vamp trimming machine having, in combination, a trimming knife arranged to extend'inside of the vamp of a lasted shoe, a vibrating trimming knife cooperating therewith to trim the projecting edges of the vamp and lining of the shoe and a vibrating vamp bending device mounted to move with the vibrating knife and extending at one side of the vibrating knife and below the plane of the knife arranged to engage the vamp and bend the vamp inwardly toward the medial line of the shoe. I

8. A vamp trimming machine having, in combination, a vamp trimming knife arranged to trim the projecting edges of the vamp and lining of a lasted shoe, a guide to bear against the insole and determine the position of the shoe with relation to the knife and a vibratln vamp bending device carried by the kni e and arranged to engage the vamp and press the vamp into the shoulder at the edge of the insole.

In testimon whereof I aflix my signature, in presence 0 two witnesses.

ORRELL ASHTON.

Witnesses:

FRED O. FISH, M. L. GILMAN. 

